Star Micronics CBM-820 manual ESC * m nL nH dk, 255 = nL, Mode Vertical Direction

ESC * m nL nH [d]k

[Function]	Selects Bit Image Mode
[Code]	ASCII			ESC		m	nL	nH	[d] k
	Hexadecimal			1B	2A	m	nL	nH	[d] k
	Decimal			27	42	m	nL	nH	[d] k
[Range]	m = 0, 1
	0	nL	255
	0	nH	3
	0	d	255
	k = nL		nH ⋅	256
[Outline]	•	This command specifies the bit image of the m-mode as to the number of dots specified with
		nL and nH.

•nL and nH denote the number of horizontal dots of the bit image to be printed, resulting in [nL + nH ⋅ 256] dots.

•If the bit image data is input beyond the dot position printable in one line, the surplus data will be discarded.

•d denotes the bit image data. Set "1" in the corresponding bit when printing, and "0" when not printing.

•The following table lists the bit image mode selected with m.

m	Mode	Vertical Direction	Horizontal Direction ( 1)
		Dots	Max. Dots
0	8-dots single density	8	210
1	8-dots double density	8	420

1:The total number of horizontal dots in the page mode differs depending on the printing area secured with ESC W and printing direction specified with ESC T.

[Caution]	•	If a value of m or nH goes beyond the range, this command will be ignored, processing the
		subsequent data as normal one.
	•	Normal data processing is restored after printing the bit image.
	•	The following page shows the relations between the bit image data and the dots printed.
	•	The double density bit image is invalidated in the page mode.

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